Gas tank lock



Nov. 1, 1932. F. A'. RIDER GAS TANK LOCK Filed oct. s. 1951 l Snventor v QEDA.RIDER' 8g /MM/ A4 49m/0' (Ittorneg Patented Nov. l, 1932 UNITI-:o sTAEs FFIC GAS T LOCE Application led October t, 1931. Serial No. 566,647.

This invention relates to locks for tanks or reservoirs and refers more especially to push type cap for gas tanks of automobi es.,

L:3 lts object is to produce a safety lock for this purpose in which the ignition key may be used to eliminate the hazard of lilling a gas tank while the motor is in operation.

A .further object is to obviate the attendants negligence in replacin the cap after filling the tank with gas as t e motorist will have to call :ter the key before the car can be started.

This lock also a precaution againstthe stealing `of gas.

I do not wish to infer that the lock can only be constructed to admit ,the ignition key as it may be more advantageous to use other keys.

ToA this end the invention consists in certain novel and useful features of .construction and combination of parts as hereinafter described and claimed; and in order that it ma be full-y understood reference is to be had to the accompanying drawing of which:

Fig. lis a side elevation of a gas tank with the cap and lock in use. Fig. 2 is an enlarged bottomview showing the lock as it would look when -unlocked and removed. 80 Fig. 3 is a cross section of an enlar ed bottom view of the cap when locked, ta en on line 3-3 of Fig. 1. Fi 4 is a cross section taken on line 4-4 o Fig. 3 showing how the tank neck is locked into the cap. Fig. 5 is a cross section taken on line 5-5 of Fig. 3 showing the action limit pin, the ball type pawl or tumbler and the locking plate engaged with the locking ribs of the tank nec v Throughout the description and drawing, the same number is used to refer to the same partso '.lli.s invention consists of a cap 1 having a transverse opening 2 in which locking mechanism body 3 is held central. Locking mechanism body 3 has a flange 4 which is part of lock body 3. Over the lock body 3` 1s a lock retaining plate 8 having holes 9 which correspond to holes 5 of flange 4 to allow rivets 7 to be inserted and peened over,

thus forming, through'rivets 7 one unit comprised of cap 1, lock mechanism body 8 and lock retaining plate 8. Lock retaining plate 8 has two protrusions 10 extending downward thereto and acting las guides when the cap is inserted into tank neck 11. Between tank neck 11 and retaining plate 8 is a cork gasket 12 whichvhas an opening 18 conforming with the shape and surrounds the lower extremity of lock mechanism body 3, and also has openings 14 which it over guides 100i retainer plate 8. Between. cork gasket 12 and retainer plate 8 is a metal plate 15 substantially the same form as gasket 12, and keeps spring 16, which is between metal plate 15 and retainer`8, from cutting into cork asket 12. Spring 16 holds gasket 8 secure y against tank neck 11 to keep cap from rattlmg.

In locking body 3 there is a hole 17 in which action limit pin 18 is pressed. Action limit pin 18 extends downward and beyond the surface of lock body 3 sufficiently to enter quadrant groove 19, of lock plate 20, which is the action limit groove. Also in lock plate 20 are tumbler holes 21 and 22; 21 being diametrically opposite one end of limit groove 19 and tumbler hole 22 being diametrically opposite the other end of limit groove 19. Diametrically opposite hole 17 in body 3 is tumbler hole 23 in which is tumbler 24, compressing between it and body 3 a spring 25. Spring 25 and ball 24 create an added frictionv between lock plate 20 and body 3 in that when lock plate 20 is in either the locked or unlocked position ball 24 forced downward by spring 25 partially enters either hole 21 or hole 22 as the case may be, thus keeping lock late 2O from turning, due to vibration. Loc plate 20 is substantially anchored to the rotary part 26 of the lock by means of screws 27 passing through holes 28 and screwing into threaded holes 29 of rotor 26 as shown in Fig. 5. From lock plate 26, and being diametrically opposite each other, extend two lugs 30 and 31 which when the lock is unlocked come within the limits of guides 10 of retainer plate 8 and allow the cap to be removed from tank neck 11 without lugs 30and'31 catching on lock rims 82 the ca and of tank neck 11 as will be readily understood by referring to Figs. 2 and 5.

To remove the cap the key must be inserted t adjust the lock to dispose the lugs of the rotor plate in a parallel position with guide lu of the cap after which the cap is free toe removed to give access to the tank or for any other purpose. y

From the fore omg it will be apparent that I have produce a gas tank lock which will protect the cap and' lock from removal and can be easily and economically applied to the gas tank of any of the ap roved cars. It is of course apparent that the etailed construction of the lock outside of the fact that itmusthave a rotating plate such as lock plate may be varied. In fact, it may be of any tumbler type barrel locks now 1n use. The distinctive features ofthis lock being that its operative mechanism is within the cap and hence inaccessible to any person lackthe proper key.

aving now described this invention and its operation, what I claim is 1. The combination with a tank neck having a locln'ng rim therein, acap provided with a multipliclty of lugs corresponding with a plurality of grooves or notches in said lock- 1ng rim, said cap being provided with a lock having a rotating locking late thereon, said lockingl' plate being provi ed with a plurality of ugs corres ndin with the grooves or notches in the a oresai locking rim which when adjusted to a-locked position will hold firmly against the aforesaid tank neck, t e said rotary locking plate being ro` vided with a groove therein takin the orm of a quadrant of a circle in whic a in securely mounted in the aforesaid loc may slide. 2. The combination with a tank neck havmg a rim provided with an annular inwardly projectmg portion having spaced recesses,

a cap having a loch` extending through the cap, a rotative locki plate attached to the bottom of the lock ah ada ted to be rotated by the operation of the loc means comprising a curved slot in the locking plate and a pin on the cap engaging the slot for limiting the rotation of the locklng plate, the said cap having downward protrusions engaging said spaced recesses of the rim when the cap is thereon, the said locking plate having outwardl extending lugs constructed to be passe through said rim recesses when the cap is placed on said neck and to be turned beneath said rim by the lock to secure the cap, the said locking plate having spaced openings, and the sald ca'p being rovided with a cavity and a s ring and ba therein constructed to press t e ball upon the locking plate and' into enga ement with said openlngs in different positlons of the plate to hold said plate releasable against d1s lacement by jarring movements of the tan In testimony whereof, I aiiix my signature.

FRED A. RIDER.

of a cap havlng a lock extending through the cap, a rotative lookin plate attached to the bottom of the lock an ada ted to be rotated by the operation of the loc ing a curved slot in the loc pinon the cap engaging the slot or limiting the rotation of the locklng plate, the said ca having downward protrusions engaging sai s ace recesses of the rim when the cap is t ereon, the said locking plate having outwardl extending lugs constructed to be p through said rim recesses when the cap is laced on said neck and to be turned beneat said rim by the lock to secure the cap andy spring controlled devices engaging sald cap and lockingv late in different posltions ofthe locking p ate .to hold said plate releasable against displacement by jarring movements of the tank.

3. The combination with a tank neck havmg a nm provided with an annular inwardly proJectmg portion having spaced recesses, of

means comprisking late and aV 

